Middlesex No. 2
Key Takeaway
Middlesex No. 2 is classified as high hazard in Vermont. It was completed in 1928 and is 98 years old. Its primary use is hydroelectric. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 51 ft (taller than 91.6% in VT) |
| Dam Length | 278 ft |
| Dam Type | Gravity |
| Max Storage | 2.7K acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 42 acres |
| Drainage Area | 521 sq mi |
| Year Completed | 1928 (98 years old) |
| NID ID | VT00029 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
GREEN MOUNTAIN POWER CORP
Public Utility
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Low Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Middlesex No. 2?
Middlesex No. 2 is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Middlesex No. 2?
Middlesex No. 2 is owned by GREEN MOUNTAIN POWER CORP (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Middlesex No. 2 built?
Middlesex No. 2 was completed in 1928, making it 98 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Middlesex No. 2?
Middlesex No. 2 serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Middlesex No. 2?
Middlesex No. 2 has a dam height of 51 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Middlesex No. 2 last inspected?
Middlesex No. 2 was last inspected on January 1, 1987. Inspection dates indicate when a formal review occurred, not the results of that inspection.